What should I do if the flow and head of a fire pump are not enough?

Flow rate and head is an important parameter of fire pumps, in the process of use, found that the flow rate or head is not enough how to do? For example, if a fire breaks out in a high-rise area, the water flow will not reach the scene if the head is not enough, and the fire will not be extinguished in time; when the fire is bigger, the smaller flow cannot extinguish the fire, which also delays the best time to put out the fire.
Fire pump in the daily use of maintenance, found that the flow or head is not enough how to do? The following small analysis with you, on the flow, head is not enough, how should we rule out the reasons?


First, the flow of the fire pump is not enough 

1, Half-open impeller and fire pump cover gap is too large? Reduce the gap.

2, Sealing ring serious wear or corrosion? Change the new sealing ring.

3、Serious wear or serious corrosion of the impeller? Change the impeller for a new one.

4、Insuction tube is not deep enough, there is air sucked into the fire pump? Increase the immersion depth of the suction pipe.

5、Inhalation pipeline is too thin or clogged with debris? Change the suitable pipeline and clear the debris.


Second, the head of the fire pump is not enough 

1、Insufficient speed check the current and restore the speed.

2, The performance of the fire pump can not meet the design requirements? Change the fire pump to meet the design requirements.

3, Half-open impeller and fire pump cover gap is too large? Reduce the clearance.

4、Impeller corrosion is serious? Change the impeller for a new one.

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